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Homework Help: Find magnitude and direction of these vectors

  1. Feb 11, 2008 #1
    1. The problem statement, all variables and given/known data

    Find the magnitude and direction for the vector A-B. Vector A=3m, Vector B=3m

    2. Relevant equations



    3. The attempt at a solution

    Wouldn't it just be 0?
    3-3=0

    Thank you very much
     
  2. jcsd
  3. Feb 11, 2008 #2

    mgb_phys

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    It depends on the angle between them.
     
  4. Feb 11, 2008 #3
    Thank you very much

    If the only vectors are A=3.00m and B=3.00, vector -b would be -3.00, right? So wouldn't the distance be 0m? Or is this totally wrong?

    Thank you
     
  5. Feb 11, 2008 #4

    mgb_phys

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    A vector has magnitude and direction, to talk about a vector of just 3m is meaningless.
    If they were in the same line then A - B would be zero.
    If they were at right angles the distance would be 4.2m
     
  6. Feb 12, 2008 #5
    Thank you very much

    Regards
     
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